evm demoded from wlan ofdm signal with comm.Phasenoise() increased round 3dB from 80MHz to 160MHz signal bandwidth.

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Hi,
I am using a comm.Phasenoise to check the phase noise effect on EVM for a demoduation of wlan ofdm signal.
the simulation shows different EVM value in signal bandwidth: 80MHz and 160MHz. the EVM difference is 3dB
it also show the EVM difference from 20MHz signal Bandwith to 80MHz, which is also 3dB.
Does someone has experence in using matlab comm.PhaseNoise(). I suspect that the phase noise module may have some issue on changed simulation sampling rate.
regards
XD

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